Device for detecting sealing property of multi-cavity container or multiple containers by helium

A container sealing and container technology, which is applied in the field of leak detection devices for pressure vessels, can solve problems such as time-consuming and cumbersome work, and achieve the effects of reducing work procedures, improving work efficiency and achieving obvious effects.

Active Publication Date: 2012-07-11
HANGZHOU ZHONGTAI CRYOGENIC TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for some complex plate-fin heat exchangers, sometimes there are more than ten streams of fluid. In this way, when the heat exchanger is inspected for external leakage a

Method used

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  • Device for detecting sealing property of multi-cavity container or multiple containers by helium
  • Device for detecting sealing property of multi-cavity container or multiple containers by helium
  • Device for detecting sealing property of multi-cavity container or multiple containers by helium

Examples

Experimental program
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Example Embodiment

[0017] Specific embodiment one

[0018] Such as figure 1 As shown, the present invention is a device for detecting the tightness of a plate-fin heat exchanger 19 with helium gas. The plate-fin heat exchanger 19 has five chambers (or channels). The present invention includes a helium mass spectrometer. The leak detector 1, the vacuum slide valve pump 2, the roots pump 3, the high vacuum flapper valve 4 and the manifold 5 connected in sequence, there is a transition between the roots pump 3 and the high vacuum flapper valve 4 In section 11, a bellows 12 is connected between the high-vacuum flapper valve 4 and the manifold 5, and a sealing device for sealing the multi-chamber container or containers to be tested and capable of filling and discharging helium. The sealing device includes an airbag 13 which is connected to the helium tank 17 through the valve FC14, the compressor 15 and the valve FD16 in sequence. Five connecting pipes 6 are provided on the collecting pipe 5, each of ...

Example Embodiment

[0031] Specific embodiment two

[0032] Such as figure 2 As shown, the present invention is a device for detecting the tightness of a plate-fin heat exchanger 19 using helium gas. The plate-fin heat exchanger 19 has five chambers. The present invention includes a vacuum slide valve connected in sequence Pump 2, Roots pump 3, high vacuum flapper valve 4, manifold 5, valve FE18, and helium mass spectrometer leak detector 1. A transition section 11 is connected between the roots pump 3 and high vacuum flapper valve 4 A bellows 12 is connected between the high-vacuum flapper valve 4 and the collecting pipe 5, and a sealing device for sealing the multi-chamber container or containers to be tested and capable of filling and discharging helium gas, the sealing device It includes an air bag 13, which is connected to the helium tank 17 through a valve FC14, a compressor 15 and a valve FD16 in sequence. Five connecting pipes 6 are provided on the collecting pipe 5. Each of the connectin...

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Abstract

The invention discloses a device for detecting the sealing property of a multi-cavity container or multiple containers by helium. The device comprises a helium mass-spectrometer leakage detector, and a vacuum sliding valve pump, a Roots pump, a high vacuum baffle plate valve and a concentrated pipe which are connected with one another sequentially, and a sealing device for sealing the multi-cavity container to be detected or the containers to be detected and filling and releasing helium, and is characterized in that: at least three connection pipelines are arranged on the concentrated pipe; a valve FA for closing and opening each connection pipeline is arranged on each connection pipeline; a port JA detachably connected with the helium mass-spectrometer leakage detector is formed in the connection pipeline below each valve FA; a valve FB for closing and opening each port JA is arranged on each port JA; and the lower end of each connection pipeline is provided with a port JB detachably connected with the inlet of the container to be detected. According to the device, the working procedures can be reduced, the working time is shortened, the work efficiency is improved, and low carbon and environment friendliness are realized; and particularly, when the multi-cavity container is provided with multiple channels, the device has a relatively remarkable effect.

Description

technical field [0001] The invention relates to a leak detection device for a pressure vessel, in particular to a device for detecting the tightness of a multi-cavity container or a plurality of containers simultaneously by using helium gas. Background technique [0002] Because of its high sensitivity and accuracy, the helium mass spectrometry leak detection method is usually applied to pressure vessels with a high level of leakage prevention. Helium mass spectrometry leak detection methods can basically be divided into two types: using helium internal pressure method and externally applying helium gas by vacuuming the inside of the equipment. [0003] The plate-fin heat exchanger is a heat exchanger commonly used in the field of gas separation and cryogenics. It has a high level of leak resistance. It is usually necessary to use helium mass spectrometry to ensure the airtightness of the heat exchanger. Because the plate-fin heat exchanger is a pressure vessel that can all...

Claims

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Application Information

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IPC IPC(8): G01M3/20
Inventor 钟晓龙
Owner HANGZHOU ZHONGTAI CRYOGENIC TECHNOLOGY CORPORATION
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